Chain wrench.



Patented Oct. 28, I902;

J. D. BROWN &. W. MGDERMOTT,

CHAIN WRENCH. I

-Application fled Aug 6, 1902 No Model.)

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anwntozs e/TD.,Z3mw/1 anZ W Wye/7,7707? UNITED STATES PATENT OFFICE.

JOSEPH D. BROWN AND WALTER MODERMOTT, OF GREENVILLE, MISSOURI.

CHAIN WRENCH.

SPECIFICATION forming part of Letters lat'ent N 0. (12,253, datedOctober 28, 1902,

Application filed August 6, 1902- ,Co all whom it may concern/.-

Be itknown that we, JOSEPH D. BROWN and WALTER MCDERMOTT, citizens ofthe United States, residing at Greenville, in the county of Wayne andState of Missouri, have invented certain new and useful Improvements inChain Wrenches; and we do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

The invention relates to chain wrenches.

The object of the invention is to provide a wrench of this characterwhich shall be simple of construction, durable in use, comparativelyinexpensive of production, and eflicient in action.

With these and other objects in view the invention consists in certainnovel features of construction, combination, and arrangement of parts,which will be hereinafter more fully set forth, and particularly definedin the appended claims. 7

In the accompanying drawings, Figure 1 is a side elevation ofourimproved wrench. Fig. 2 is a top plan View.

Referring to the drawings, 1 denotes the handle, and 2 denotes a pivotedjaw, having a curved outer serrated face 3, claws 5 at one end and anaperture 6 at the other end.

7 denotes a chain, one end of which is pivoted between the ears 8,formed on the handle, and the other end of which is adapted after beingpassed around a pipe or other object to be held or turned to engage withthe claws, and thus permit of the operation of the wrench. It will benoticed that several of the links a, b, and 0 have smooth outer sides,while the remaining links, or particularly those at or near the free endof the chain, are provided with shoulders 9. The links are 'ofsufficient size to fit in the-space between the claws, so that theshoulders will engage the claws and-prevent the withdrawal of the linksfrom between the claws. When a pipe or other object is confined betweenthe chain and serrated face of the pivoted jaw, the greater Serial in.118,670 (No model.)

sorted to without departing from the princi-. ple or sacrificing any ofthe advantages of our 1 invention.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is p 1. The combination of ahandle, a jawpivoted at one end thereof and provided at one end with an aperture andat the other end with claws, a chain connected to the wrench at a pointbetween its ends and extending through the aperture and constructed toengage and be held by the...claws, substantially as set forth.

2. A wrench eornprisinga handle, ajaw pivoted at one end thereof andprovided with a curved serrated face, one end of said jaw be ingprovided with claws and the other end with an aperture, a chainconnected to the wrench and passed through said aperture and adapted toengage the claws, a series of the links of the chain being provided withshoulders which are adapted to engage said claws and thereby prevent thewithdrawal of the chain from between said claws, substantially as setforth.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

Witnesses:

E. M. SMITH, O. M. RHODES.

